Model 1823 WiFi thermostat is a dedicated 3A temperature controller matched for furnace and space heaters, built-in WiFi module to support mobile remote control anytime anywhere. It adopts high precision NTC temperature sensor to monitor indoor temperature in real time and realize automatic constant temperature control. Clear digital display shows real-time and set temperature, physical buttons support timing mode, child lock and parameter adjustment. With 3A rated load, it stably drives various household heating furnaces, equipped with overheat protection, sensor failure alarm and power delay protection to extend heater service life. Users can connect mobile APP to remotely switch heating, modify temperature and check running records. Compact internal structure is easy to assemble inside heating equipment, anti-interference circuit ensures long-term stable operation. Widely applicable to indoor warm air furnaces, small heating stoves and portable heaters. Excellent intelligent control performance with competitive factory price, ideal matching component for heater manufacturers and global hardware distributors.